bt_uart.c File Reference

Configurations for the WILC3000 Serial Bridge Application.

Copyright (c) 2018 Microchip Technology Inc. and its subsidiaries.

#include "bt_uart.h"
#include "uart_stream.h"
#include <string.h>

Macros
#define	ALL_INTERRUPT_MASK   0xffffffff
	All interrupt mask. More...
#define	STATE_READ   0
	USART is reading. More...
#define	STATE_WRITE   1
	USART is writing. More...

Functions
void	bt_configure_usart (uint32_t baudrate)
	Configure USART in normal (serial rs232) mode, asynchronous, 8 bits, 1 stop bit, no parity, 115200 bauds and enable its transmitter and receiver. More...
void	bt_usart_receive (uint8_t *buffer, uint32_t size)
void	bt_usart_stream_write_buffer (uint8_t *data, uint32_t size)
void	bt_usart_transfer (uint8_t *buffer, uint32_t size)
void	USART1_Handler (void)
	USART IRQ handler. More...
static void	usart_clear (void)

Variables
static uint8_t	bt_usart_buffer [USART_BUFFER_MAX]
int8_t	g_c_recv_buff [USART_BUFFER_MAX] = { 0 }
	Buffer for receiving. More...
Pdc *	g_p_pdc
	Pointer to PDC register base. More...
pdc_packet_t	g_st_packet
	PDC data packet. More...
uint8_t	g_uc_state = STATE_WRITE
	State of reading or writing. More...
volatile uint32_t	g_ul_sent_done = false
	Reception is done. More...
uint8_t	hci_recv_buffer [13]
uint8_t	read_buffer [12]
uint8_t *	tx_buffer = NULL
uint32_t	tx_size = 0
static uint32_t	usart_recv_size = 0

#define ALL_INTERRUPT_MASK   0xffffffff

All interrupt mask.

Referenced by bt_configure_usart().

#define STATE_READ   0

USART is reading.

Referenced by bt_usart_receive(), and USART1_Handler().

#define STATE_WRITE   1

USART is writing.

Referenced by bt_usart_transfer(), and USART1_Handler().

void bt_configure_usart

(

uint32_t

baudrate

)

Configure USART in normal (serial rs232) mode, asynchronous, 8 bits, 1 stop bit, no parity, 115200 bauds and enable its transmitter and receiver.

References ALL_INTERRUPT_MASK, uart_rs232_options::baudrate, BT_CONF_UART, g_p_pdc, gpio_configure_group, pdc_enable_transfer(), sysclk_enable_peripheral_clock(), usart_disable_interrupt(), usart_enable_rx(), usart_enable_tx(), usart_get_pdc_base(), and usart_serial_init().

Referenced by main().

void bt_usart_receive	(	uint8_t *	buffer,
		uint32_t	size
	)

References BT_CONF_UART, g_p_pdc, g_uc_state, NULL, pdc_rx_init(), STATE_READ, pdc_packet::ul_addr, pdc_packet::ul_size, usart_clear(), and usart_enable_interrupt().

Referenced by bt_hci_reset_handler(), bt_hci_start_rx_handler(), bt_hci_start_tx_handler(), bt_hci_stop_txrx_handler(), serial_bridge(), usart_read_block_handler(), and usart_read_reg_with_ret_handler().

void bt_usart_stream_write_buffer	(	uint8_t *	data,
		uint32_t	size
	)

References BT_CONF_UART, uart_is_tx_buf_empty(), usart_is_tx_empty(), and usart_serial_putchar().

Referenced by bt_hci_reset_handler(), bt_hci_start_rx_handler(), bt_hci_start_tx_handler(), bt_hci_stop_txrx_handler(), bt_serial_bridge(), and bt_uart_firmware_download().

void bt_usart_transfer	(	uint8_t *	buffer,
		uint32_t	size
	)

References BT_CONF_UART, g_p_pdc, g_uc_state, g_ul_sent_done, NULL, pdc_tx_init(), STATE_WRITE, pdc_packet::ul_addr, pdc_packet::ul_size, usart_clear(), and usart_enable_interrupt().

void USART1_Handler

(

void

)

USART IRQ handler.

Interrupt handler for USART. After reception is done, set g_ul_recv_done to true, and if transmission is done, set g_ul_sent_done to true.

References BT_CONF_UART, g_uc_state, g_ul_sent_done, hci_recv_buffer, STATE_READ, STATE_WRITE, pdc_packet::ul_size, usart_disable_interrupt(), usart_get_status(), and usart_stream_write_buffer().

static void usart_clear ( void  )

static

References BT_CONF_UART, g_p_pdc, NULL, pdc_rx_init(), pdc_tx_init(), pdc_packet::ul_addr, pdc_packet::ul_size, usart_enable_rx(), usart_enable_tx(), usart_reset_rx(), and usart_reset_tx().

Referenced by bt_usart_receive(), and bt_usart_transfer().

uint8_t bt_usart_buffer[USART_BUFFER_MAX]

static

int8_t g_c_recv_buff[USART_BUFFER_MAX] = { 0 }

Buffer for receiving.

Pdc* g_p_pdc

Pointer to PDC register base.

pdc_packet_t g_st_packet

PDC data packet.

uint8_t g_uc_state = STATE_WRITE

State of reading or writing.

volatile uint32_t g_ul_sent_done = false

Reception is done.

Sending is done.

uint8_t hci_recv_buffer[13]

Referenced by USART1_Handler().

uint8_t read_buffer[12]

uint8_t* tx_buffer = NULL

uint32_t tx_size = 0

uint32_t usart_recv_size = 0

static